Can be used for female buttox or bosoms.
A Mexican Bounty is used to describe the pair of craziest ass cheeks or boobs, can by any shape or size, but usually odd and rather unattractive.
Once seen by another person, usually followed by the sentence 'Ay Ay Ay! Mexican Bounties!'
Fredrick: How did your date go last night?
Jiminy: Awful, she had Mexican Bounties.
Harold: Did you check out that chick last night, she was working those jeans.
Muhammed: Ah no no, I hit that, she was a pure Mexican Bounty breed.